common_x86.c revision afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1c 
1
2/*
3 * Mesa 3-D graphics library
4 * Version:  3.1
5 *
6 * Copyright (C) 1999  Brian Paul   All Rights Reserved.
7 *
8 * Permission is hereby granted, free of charge, to any person obtaining a
9 * copy of this software and associated documentation files (the "Software"),
10 * to deal in the Software without restriction, including without limitation
11 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
12 * and/or sell copies of the Software, and to permit persons to whom the
13 * Software is furnished to do so, subject to the following conditions:
14 *
15 * The above copyright notice and this permission notice shall be included
16 * in all copies or substantial portions of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
21 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
22 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
23 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
24 */
25
26
27/*
28 *  Check CPU capabilities & initialize optimized funtions for this particular
29 *   processor.
30 *
31 *  Written by Holger Waechtler <holger@akaflieg.extern.tu-berlin.de>
32 */
33
34#include <stdlib.h>
35#include "common_x86asm.h"
36
37int gl_x86_cpu_features = 0;
38
39
40void gl_init_all_x86_asm (void)
41{
42#ifdef USE_X86_ASM
43   gl_x86_cpu_features = gl_identify_x86_cpu_features ();
44
45   if (gl_x86_cpu_features & GL_CPU_GenuineIntel) {
46      printf ("GenuineIntel cpu detected.\n");
47   }
48   gl_init_x86_asm_transforms ();
49
50
51#ifdef USE_MMX_ASM
52   if (gl_x86_cpu_features & GL_CPU_MMX) {
53      char *s = getenv( "MESA_NO_MMX" );
54      if (s == NULL) {
55         printf ("MMX cpu detected.\n");
56      } else {
57         gl_x86_cpu_features &= (!GL_CPU_MMX);
58      }
59   }
60#endif
61
62
63#ifdef USE_3DNOW_ASM
64   if (gl_x86_cpu_features & GL_CPU_3Dnow) {
65      char *s = getenv( "MESA_NO_3DNOW" );
66      if (s == NULL) {
67         printf ("3Dnow cpu detected.\n");
68         gl_init_3dnow_asm_transforms ();
69      } else {
70         gl_x86_cpu_features &= (!GL_CPU_3Dnow);
71      }
72   }
73#endif
74
75#endif
76}
77
78